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# Title: Qua Continentur, Oratio Inauguralis. Mathesis Universalis; sive, Arithmeticum opus Integrum, tum Numerosam Arithmeticam tum Speciosam complectens. Adversus Meibomii, de Proportionibus Dialogum, Tractatus Elencticus (shelfmarks Leibn. Marg. 84:1, Stück 1; Leibn. Marg. 84:1)
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C AP. 220
mus, Cedetricis lenurio applicentur, praemirrenda lunce
Geomerria suaeda au cerminorum explicacionem necellaria.
tic quonians ex mensura Parallelogrammi Rectanguli (quod,
breritacis gracia, simplicicer Rectangulum dici Colet) reliqua-
rum tgurarum dimentiones deduci Colene; de Parallelogram.
mopraemittenda sunt quaedam Detiniciones, hoc est, Termi-
morum explicationes.
Definitiones. Paralleloerammum appellant Rixuram planam quadrilateram, CHjHS
aliguot Greo. opposira latera, seu laterales lineae, sunt rectae parallelae, hoc CA, aequi-
metricao
distantes, sive aequalem ubique habentes inter se distantiam. Ouales lunt
quae in Schematis mox apponendis conspiciuntur.
Paralleloerammum vexo cunc Rectanculum dicieur, quando ipsius
omnes anculi sunt recti. (Vel eciam, Cujus anculus aliquis est rectus.
Nam s Parallelogrammum habeac rel unum angulum rectum,
reliquos icem omnes rectos esse Lacile cst demonstratu.)
Anculus eurem Rectus
cunc esse dicirue, quando
linea recta in rectum aneu-
lum faciens ita recte incidit
ut neuero maxis inclinet. CE
in figura pridum appol
ta, recta C A in rectam
GAB ita recte incidens
ut non magis hac quam
illac inclinee, Facie an
sulos CAB, C,AC, re-
Ato5. Ft Cimilicer anguli
ad FOH _C. recti fUnE.
Siqua vero inclinet ma-
eis, angulum obliguum ta-
CIT: Nempe Aeuum (quippe ansulorecto minorem) ea qua propen
der Tcu magis inclinat; vel Obrusum (anculo recto majorem, ea unde
reclinat sire diverset magis. Puca, s1 recta C A, quae jam erecta
CA, FUDPONaTUIE vertus AB nucare seu propendere, 2de04; ab
RC reclinari, pro duobus angulis jam rectis, tierene duo obli-
qui, C AB aCUTS, EE C AO obCuTuS; qui camen simUI SUMPCI
duobus illis rectis Cune 2qua los; nam quaneo unus propcer in-
clinacionem
19
Divisionis Exereitium.
muS, nOn ICa OPPOrTNUM erAE verba FaCere.
CEcrero quae de Mulciplicaeine d Dirisione jam eradidi-